I am trying to run tests from ANT, after having generated a build file.

One of the issues I am facing is due to an Exception thrown while loading a plugin intended to be used only inside the IDE. It does not make sense to run it in headless mode and it appears nowhere in the build script I am using or in the ones I am referring to. Still, MPS decides to load it. I have no idea why it is trying to load it and I could convince it to not doing that.